#include <stdio.h>

unsigned int uiDPos(unsigned int x)
{
	return x / 21;
}

int iDPos(int x)
{
	return x / 21;
}

int uiDNeg(unsigned int x)
{
	return x / -21;
}

int iDNeg(int x)
{
	return x / -21;
}

int main()
{
	return 0;
}
